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Published on: December 26, 2016
Advances in molecular function of UPF1 in Cancer
Gazmend Temaj1, Silvia Chichiarelli2, Pelin Telkoparan-Akillilar3
1Faculty of Pharmacy, College UBT, 10000, Prishtina, Republic of Kosovo.
Abstract:
It is known that more than 10 % of genetic diseases are caused by a mutation in protein-coding mRNA (premature termination codon; PTC). mRNAs with an early stop codon are degraded by the cellular surveillance process known as nonsense-mediated mRNA decay (NMD), which prevents the synthesis of C-terminally truncated proteins. Up-frameshift-1 (UPF1) has been reported to be involved in the downregulation of various cancers, and low expression of UPF1 was shown to correlate with poor prognosis. It is known that UPF1 is a master regulator of nonsense-mediated mRNA decay (NMD). UPF1 may also function as an E3 ligase and degrade target proteins without using mRNA decay mechanisms. Increasing evidence indicates that UPF1 could serve as a good biomarker for cancer diagnosis and treatment for future therapeutic applications. Long non-coding RNAs (lncRNAs) have the ability to bind different proteins and regulate gene expression; this role in cancer cells has already been identified by different studies. This article provides an overview of the aberrant expression of UPF1, its functional properties, and molecular processes during cancer for clinical applications in cancer. We also discussed the interactions of lncRNA with UPF1 for cell growth during tumorigenesis.
Insights
The study highlights the role of the UPF1 protein in regulating mRNA decay and cancer progression. Aberrant UPF1 expression and its interaction with long non-coding RNAs are crucial for cancer cell growth and potential therapeutic strategies.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- Over 10% of genetic diseases stem from premature termination codons (PTCs) in mRNA.
- Nonsense-mediated mRNA decay (NMD) degrades PTC-containing mRNA, preventing truncated protein synthesis.
- UPF1 is a key regulator of NMD and its expression is linked to cancer prognosis.
Purpose of the Study:
- To provide an overview of UPF1's aberrant expression in cancer.
- To explore UPF1's functional properties and molecular roles in tumorigenesis.
- To discuss UPF1's potential as a biomarker and therapeutic target in cancer.
Main Methods:
- Literature review of UPF1's role in cancer.
- Analysis of UPF1's involvement in NMD and protein degradation pathways.
- Examination of UPF1 interactions with long non-coding RNAs (lncRNAs).
Main Results:
- UPF1 dysregulation is observed in various cancers, correlating with poor prognosis.
- UPF1 acts as a master regulator of NMD and may function as an E3 ligase.
- lncRNAs interact with UPF1, influencing cell growth and tumorigenesis.
Conclusions:
- UPF1 is a promising biomarker for cancer diagnosis and treatment.
- Understanding UPF1's molecular mechanisms and lncRNA interactions can lead to novel therapeutic strategies.
- Targeting UPF1 pathways offers potential for future cancer therapies.
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